A one-person puzzle-type game simulating a naval battle.
The player starts with his/her fleet laid out randomly on the top half of the screen. The enemy fleet is hidden and laid out randomly on the bottom half of the screen.
The player begins by tapping a location on the lower half of the screen -- indicating a place to fire on the enemy fleet. The enemy then fires on the player's position.
A hit is indicated by a red 'X' and a miss by a white 'X.' When the player sinks an enemy ship, the ship is displayed. The first player to sink the other player's fleet is the winner.